Media Coverage
Pressure-reducing system for pipeline
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Journal of the Japanese Association for the Study of Irrigation, Drainage
and Reclamation Engineering
No.108, published on Apr. 1, 1997 |
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Reprinted by permission of the Japanese Association for the Study of Irrigation,
Drainage and Reclamation Engineering |
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Pressure-reducing system for pipeline
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Masaki Saito
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Crown Engineering Co., Ltd.
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Yoshihiro Terakawa
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Same as above
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Noriaki Tsunoda
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Same as above
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Hitone Inagaki
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Same as above
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Abstract (English translation of the original text)
The following is an introduction to a low pressurization system for agricultural
irrigation based on the safe use of polyvinyl chloride piping at the terminal
side of the pipeline.
The combination of "the cut off of hydrostatic pressure using conventional
or new type automatic pressure reducing valves" and "the countermeasures
for water hammer pressure with airbags or safety valves" is proposed
as a pipeline pressure reduction system.
Furthermore, an inline pressure reduction system that reduces systematic
internal pressure in phases through a serial arrangement of new type automatic
pressure reducing valves is offered.
For details of this new type automatic pressure reducing valve, please
refer to
Constant Pressure Valve (pressure reducing valve) UFSP type
Constant Pressure Valve (pressure reducing valve with over-discharge cutoff
function) UFSP-C type |
